Home / 255,432.35-352,507.58-142,255.10

Finding the Fourth Proportional to 255,432.35, 352,507.58 and 142,255.10

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Solution

The fourth proportional to 255,432.35, 352,507.58 and 142,255.10 is: 196,318.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,432.35 : 352,507.58 = 142,255.10 : x
  2. Step 2: Convert to fraction form
    255,432.35/352,507.58 = 142,255.10/x
  3. Step 3: Cross multiply
    255,432.35x = 352,507.58 × 142,255.10
  4. Step 4: Simplify right side
    255,432.35x = 50,145,998,569.84
  5. Step 5: Solve for x
    x = 50,145,998,569.84/255,432.35
  6. Step 6: Final answer
    x = 196,318.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.